Select the appropriate green Buy Now button below to purchase your choice of either a Standard SS4 or SS4 Auto Profile, or the Standard SS3 or SS3 Auto Profile.

Note: Both SS3 Auto Profile and SS4 Auto Profile options can independently charge Lead Acid, AGM and most Lithium batteries. No switching required. Both SS3 and SS4 bank Standard versions are designed to charge Lead Acid and AGM batteries.

When you purchase either SS4 option, we will send you a free 36V B.O.S and when you choose an either SS3 we will ship you a free 24V B.O.S.

Why you need The B.O.S.: The Battery Optimization System continually balances your batteries in series to extend your runtime on the water and increase your battery life! The B.O.S. actively shuttles 7.5 Amps between your stronger batteries to a weaker battery in the chain whether on charge, on your trailer or on the water. View your battery status and more from our free PROView Link app! Click here for more information on the B.O.S.